C 与VB接品API
我写了一个C的DLL,函数定义如下
extern "C" DWORD __declspec(dllexport) XPP( LPSTR pszDeviceName, int x, int y, int barcode_height, LPCSTR pszLabel)
在VB中调用,引用为
Private Declare Function XPP Lib "XDLL.dll" ( _
ByVal pszDeviceName As String, ByVal X As Long, ByVal Y As Long, _
ByVal height As Long, ByVal pszLabel As String) As Long
调用时,出现"DLL调用约定出错"
请问各位高手,有没有哪写错了?